SevenSlider is a 2x2x2 arrangement of cubelets with one missing, allowing permutations. The puzzle's goal is to restore the initial ordering based on RGB color and/or numerical cues. It supports laptops and Mac Retina displays.

RufasCube is a slider puzzle where there is a 3x3x3 arrangement of cubelets with the center one missing, allows sliding permutations. After a randomization, the goal is to restore the cube to its original configuration based on color and alphabetic hints. It is challenging, but not as difficult as a Rubik's cube. Here, diligence pays off. Also, incremental solution is possible - you can unscramble one slice at a time. When you finish, you can see the entire English alphabet appear on the 26 cubelets. It supports laptops and Mac Retina displays.

RufasGate is a combination of the Portal and Sokoban games. Using stargate terminology, there are Zero Point Modules (ZPMs) that power the portal guns, which in turn create the two ends of a temporary and short range wormhole, a shortcut through space-time, that allows obstacles to be bypassed. In order to empower the portal guns, all cylindrical ZPMs must be bumped onto their base receptacles. There are currently only four levels, and no way to save a game. RufasGate is also a testbed for learning/illustrating various modern OpenGL techniques including cubemaps, water reflections, sound, and glsl shader capabilities. For anyone planning to use SDL2, it illustrates key-mapping, to get improved keyboard responsiveness from SDL. It supports laptops and high DPI Mac Retina displays.

Pybik is an interactive, graphical, single player puzzle about the cube invented by Ernő Rubik. Besides the cube, the program can handle towers and bricks (non-cubic puzzles). Pybik also has solvers, pretty patterns, and a collection of various moves. The cube can be manipulated with the mouse or keyboard. You can change the colors or images on the faces of the cube.

GNU Shogi plays the Game of Shogi, also known as Japanese Chess. Like GNU Chess, it can be used either through its own text-based interface, or through graphical interfaces like xshogi, tagua, omaha, or kaya.

Pong 2613 is an attempt at cloning the original Pong for the Atari 2600 in pure C++ and SDL. There are a few alterations, such as a higher resolution (640x480), but other than that, there is nothing fancy at all, just plain old Pong.

Erebus is a 2D real-time role-playing game with three quests and random dungeons. It is a classic point-n-click style RPG, with dungeons to explore, enemies to fight, NPCs to talk to, sub-quests to complete, scenery to interact with, weapons, treasure, and other items to find.

Eco-Memory is the classic memory game where the goal is to find matching pairs of cards. The cards represent habitats, organisms, and cultural entities of ecosystems like the Boreal Forest, Coral Reef, Deciduous Forest, Desert, Ice, Intertidal Zone, Rainforest, Surface Zone, Tundra, and Wetland. The game includes a small synopsis of the organisms, the cultural entities, and the habitats themselves. The synopsis is available through an "About" button that you may click after finding a matching pair of cards.

Science Quiz Bowl Challenge is a game of questions and answers. There are four topics: astronomy, biology, geology, and physics. After selecting a topic from the menu, a set of 10 questions are randomly presented, one by one, out from a pool of over 20 questions. The goal is to correctly answer as many questions as possible.